Acer TravelMate -550 Service Manual page 39

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Inverter Characteristics
No
Parameter
.
11
Current
Waveform
factor
12
Unbalance
Rate
Environment: Temperature: Operating temperature: 0
Storage temperature: -20
Humidity: 0~90% without condensation
MTBF: 5000 hours
NO.1: 14.1" XGA TFT, HANSTAR, HSD141PX11-A
NOTE: Please pay attention to the fellowing:
*1. Make sure open lamp output voltage should be within starting voltage specification.
*2. Inverter should pass human body safety test.
*3. Inverter should no smoking by any component open/short test.
*5. Transformer temperature rising should be less than 30 degree C.
*6. Transformer voltage stress should not be over 85% under any condition (turn on overshoot transient and
line transient).
*7. Wave from requirement: 1.27<=Ip/Irms<= 1.56
*8 Audio noise should be less than 36dB at 10cm distance.
*9 Ip implies zero to positive peak value of lamp current.
*10 I-p implise zero to negative peak value of lamp current
LCD
Item
Vendor & model
name
Mechanical Specifications
LCD display area
(diagonal, inch)
Display technology
Resolution
Supports colors
Optical Specification
Brightness control
Contrast control
Suspend/Standby
control
Electrical Specification
Chapter 1
Symbol
Min.
1.27
I
p
I
rms
-10%
I
I
p
p
I
rms
°
°
80
C~
C
IBM ITXG77X
Hannstar
HSD141PX11_A
Rev.1
14.1
14.1
TFT
TFT
XGA (1024x768)
XGA (1024x768)
262K
262K
keyboard hotkey
keyboard hotkey
No
No
Yes
Yes
Typ.
Max.
1.56
Multiple
2
0
+10%
Multiple
°
°
55
C~
C
Specification
LG LP105X1-G2CP
15.0
TFT
XGA (1024x768)
262K
keyboard hotkey
No
Yes
Unit
Conditions
OR
I
p
I
rms
IBM ITSX95C
15.0
TFT
SXGA+
(1400x1050)
262K
keyboard hotkey
No
Yes
*10
31

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